Hand washing device

Abstract

The present application provides a hand-washing device, which includes: a housing provided with an electrolysis chamber, wherein salt water is contained in the electrolysis chamber; a sensing mechanism; an electrolysis mechanism, which is arranged in the electrolysis chamber and is used to electrolyze the salt water in the electrolysis chamber; an ultrasonic oscillation mechanism, which is used to oscillate the salt water after electrolysis by the electrolysis mechanism into mist; and a main control board, wherein the sensing mechanism, the electrolysis mechanism and the ultrasonic oscillation mechanism are all electrically connected to the main control board, and the main control board controls the start of the electrolysis mechanism and the ultrasonic oscillation mechanism when the sensing mechanism receives a trigger signal. The hand-washing device provided in the present application has a housing provided with a sensing mechanism, and the hand-washing device adopts a contactless intelligent sensing trigger start, and the entire hand-washing and disinfection process does not contact the equipment, and can achieve safe cleaning; the electrolysis of salt water is used for cleaning, which can be suitable for people of all ages, is non-irritating and non-polluting to human skin, is safe and harmless, and has a significant bactericidal effect.

Description

Technical Field

[0001] The present application belongs to the technical field of cleaning equipment, and more specifically, to a hand washing device. Background Art

[0002] Some hand washing devices on the market have sterilization functions. The main methods of disinfection and sterilization include ozone sterilization, silver ion sterilization, ultraviolet light sterilization, high temperature sterilization, disinfectant sterilization, and electrolyzed water sterilization. Some of these disinfection and sterilization methods may cause harm to the human body, have the risk of causing cancer to the skin, or are irritating to sensitive skin. They are difficult to use for people of different age groups and have low applicability. At the same time, when using it, you need to turn the switch or press the handle to start or turn off the hand washing device. The hands are in contact with the switch or handle, and there is a risk of infection. Summary of the invention

[0003] The purpose of the embodiments of the present application is to provide a hand washing device to solve the technical problems that the hand washing devices in the prior art are difficult to be used by people of different age groups, have low applicability, and when used, there is contact between the hands and the switch or handle, posing a risk of infection.

[0004] In order to achieve the above-mentioned purpose, the technical solution adopted in this application is: to provide a hand washing device, comprising:

[0005] A shell having an inner cavity therein, the shell having an opening communicating with the inner cavity, the shell having an electrolysis chamber, and the electrolysis chamber containing salt water;

[0006] A sensing mechanism, disposed on the housing;

[0007] An electrolysis mechanism, disposed in the electrolysis chamber, for electrolyzing the salt water in the electrolysis chamber;

[0008] An ultrasonic oscillation mechanism is disposed in the inner cavity and is used to oscillate the salt water electrolyzed by the electrolysis mechanism into mist;

[0009] A main control board, the sensing mechanism, the electrolysis mechanism and the ultrasonic oscillation mechanism are all electrically connected to the main control board, and the main control board controls the electrolysis mechanism and the ultrasonic oscillation mechanism to start when the sensing mechanism receives a trigger signal.

[0010] In one embodiment, the hand washing device also includes a spray mechanism, which includes a delivery pump and a spray assembly. The liquid inlet of the delivery pump is connected to the electrolysis chamber, and the liquid outlet of the delivery pump is connected to the spray assembly. The delivery pump is used to spray the electrolyzed salt water into the inner cavity through the spray assembly.

[0011] In one embodiment, the sensing mechanism includes an infrared sensing component disposed in the inner cavity, and the infrared sensing component generates the trigger signal when sensing that an obstacle enters the sensing area.

[0012] In one embodiment, the infrared sensing component forms a first sensing area and a second sensing area in the inner cavity. When the infrared sensing component senses that an obstacle enters the first sensing area, the main control board controls the activation of the electrolysis mechanism and the ultrasonic oscillation mechanism. When the infrared sensing component senses that an obstacle enters the second sensing area, the main control board controls the activation of the electrolysis mechanism and the spraying mechanism.

[0013] In one embodiment, the sensing mechanism includes a sound control component disposed on the housing, and the sound control component generates the trigger signal when receiving a sound signal within a preset range.

[0014] In one embodiment, the hand washing device also includes a detection mechanism, which includes a first detection electrode for detecting the pH value of saline before use and a second detection electrode for detecting the pH value of saline after use. A processing module is provided on the main control board, and the processing module is electrically connected to the first detection electrode and the second detection electrode respectively. The processing module can generate bacterial content information according to the pH values ​​detected by the first detection electrode and the second detection electrode.

[0015] In one embodiment, the hand washing device further comprises a display panel, which is communicatively connected to the detection mechanism, and the display panel can display information on the bacterial content of the salt water before and after use.

[0016] In one embodiment, the hand washing device further comprises an indication module communicatively connected to the detection mechanism, and the indication module is used to indicate the bacterial content information of the salt water before and after use according to the detection result of the detection mechanism.

[0017] In one embodiment, the hand washing device further includes a power module, which includes an AC power interface and a DC power interface provided on the housing, wherein the AC power interface is used to access the mains, and the DC power interface can be plugged into a mobile power supply.

[0018] In one embodiment, the hand washing device further comprises a fan mechanism, which is communicatively connected to the main control board and can blow air to obstacles extending into the inner cavity when the ultrasonic oscillation mechanism stops working.

[0019] In one embodiment, the hand washing device further comprises a heating mechanism, which is disposed at an air outlet of the fan mechanism and is used to heat the airflow blown out by the fan mechanism.

[0020] In one embodiment, the housing is slidably connected to a draw water tank for containing saline solution. The draw water tank can be accommodated in the housing and can be taken out from the housing. The draw water tank forms the electrolysis chamber.

[0021] The beneficial effect of the hand washing device provided by the present application is that compared with the prior art, the hand washing device of the present application has a sensing mechanism on its shell. When the preset trigger condition is reached, the main control board can control the start-up of the electrolysis mechanism and the ultrasonic oscillation mechanism. The ultrasonic oscillation mechanism oscillates the salt water electrolyzed by the electrolysis mechanism to form mist, and then can surround the object to be cleaned for disinfection. The hand washing device adopts a contactless intelligent sensing trigger to start. The entire hand washing and disinfection process does not contact the equipment, and safe cleaning can be achieved. The use of electrolyzed salt water for cleaning can be suitable for people of all ages, is non-irritating and pollution-free to human skin, is safe and harmless, and has a significant bactericidal effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0023] Figure 1 A three-dimensional diagram of a hand washing device provided in an embodiment of the present application;

[0024] Figure 2 for Figure 1 A schematic diagram showing the connection of the components of the hand washing device shown;

[0025] Figure 3 for Figure 1 The hand washing device shown in the figure pulls out the pull-out water tank Figure 1 ;

[0026] Figure 4 for Figure 1 The hand washing device shown in the figure pulls out the pull-out water tank Figure 2 ;

[0027] Figure 5 for Figure 1 The hand washing device shown in the figure pulls out the pull-out water tank Figure 3 ;

[0028] Figure 6 for Figure 1 A three-dimensional view of the hand washing device from another angle.

[0029] Among them, the reference numerals in the figure are:

[0030] 100-housing; 200-sensing mechanism; 300-electrolysis mechanism; 400-ultrasonic oscillation mechanism; 500-main control board; 600-spraying mechanism; 700-detection mechanism; 800-power module; 101-inner cavity; 110-display panel; 120-indication module; 130-fan mechanism; 140-heating mechanism; 150-mobile power supply; 160-pull-out water tank; 170-filter; 210-first infrared receiving component; 220-second infrared receiving component; 510-plug; 610-delivery pump; 620-spraying component; 710-first detection electrode; 720-second detection electrode. DETAILED DESCRIPTION

[0031] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0032] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0033] It should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0034] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0035] With the global COVID-19 epidemic, disinfection and sterilization have become important means of epidemic prevention. Diseases enter the body through the mouth, so hand sterilization is particularly important. Currently, the main methods of disinfection and sterilization include ozone sterilization, silver ion sterilization, ultraviolet light sterilization, high temperature sterilization, disinfectant sterilization, and electrolyzed water sterilization.

[0036] Ozone sterilization mainly produces free radical oxygen with extremely strong oxidizing effect, which can kill bacteria efficiently, but it can easily irritate the respiratory mucosa and is harmful to the human body, so it is not a desirable way to wash hands; silver ion sterilization denatures proteins and there is heavy metal pollution to a certain extent. It is difficult to sterilize after long-term use, so it is not a desirable way to wash hands; long-term exposure to ultraviolet light sterilization may cause cancer to the skin; high temperature sterilization is not suitable for hand washing.

[0037] In the related art, hand washing and disinfection are mainly done by rinsing with a tap or spraying disinfectant. However, the tap or the handle of the disinfectant is in constant contact, which is not conducive to the cleanliness of the hands. In addition, the disinfectant is easy to produce resistance to bacteria after long-term use, and has certain toxicity. Therefore, automatic spray-type disinfection hand washers have appeared on the market, but the sprayed disinfectant has a certain harmful effect on human skin, especially for people who are prone to allergies and sensitive skin, such as infants and children. However, electrolyzed salt water has no irritation to human skin and no pollution at a concentration of 26 mg / L of effective chlorine, and has a significant bactericidal effect.

[0038] Among them, the principle of electrolysis of salt water is as follows:

[0039] The anode material for electrolysis of salt water is graphite, and the anode material for electrolysis of salt water is iron rod.

[0040] Anode reaction formula: 2Cl - →-2e+Cl2↑

[0041] Cathode reaction formula: 2H + +2e→H2

[0042] Solution reaction: 2NaOH+Cl2→NaCl+NaClO+H2O

[0043] NaClO is easy to combine with free hydrogen ions in water to generate HClO with disinfectant components, so that the electrolyzed salt water can achieve the disinfection function.

[0044] See also Figures 1 to 3, the hand washing device provided in the embodiment of the present application is now described. The hand washing device includes a shell 100, a sensing mechanism 200, an electrolysis mechanism 300, an ultrasonic oscillation mechanism 400 and a main control board 500. The shell 100 is generally box-shaped as a whole, and the shell 100 has an inner cavity 101. The shell 100 is provided with an opening near the top of the front end, and the opening is connected to the inner cavity 101. One or more openings can also be provided, and the opening can allow a person's hand to extend into the inner cavity 101; an electrolysis chamber is provided near the bottom of the inner cavity 101, and a certain amount of saline is contained in the electrolysis chamber. The electrolysis mechanism 300 is arranged in the electrolysis chamber and can electrolyze the saline in the electrolysis chamber. The ultrasonic oscillation mechanism 400 is arranged in the inner cavity 101 of the housing 100, and the ultrasonic oscillation mechanism 400 is configured to oscillate the salt water after electrolysis by the electrolysis mechanism 300 into mist; the main control board 500 is provided with an ultrasonic oscillation generating circuit, and the oscillation sheet of the ultrasonic oscillation mechanism 400 is connected to the ultrasonic oscillation generating circuit, and the oscillation frequency of the oscillation sheet can be set to 1.7MHz. When the oscillation sheet oscillates, the electrolyzed salt water can be broken up into tiny floating particles, thereby generating disinfection mist, and then the object to be cleaned can be surrounded for disinfection. When the object to be cleaned or an obstacle such as a human hand extends into the inner cavity 101, the induction mechanism 200 receives a trigger signal, triggers the induction mechanism 200, and the main control board 500 controls the start of the electrolysis mechanism 300 and the ultrasonic oscillation mechanism 400 to achieve spray disinfection of the human hand. The trigger signal can be a key signal, a voice control signal, an infrared sensing signal, or a communication signal sent under the control of a terminal application. The main control board 500 can be disposed on the surface of the housing 100 or built into the housing 100, or can be disposed separately from the housing 100. The triggering condition of the sensing mechanism 200 can be a sound within a preset volume range, a preset voice or gesture, or other non-contact preset triggering conditions. It can be understood that the objects to be cleaned are not limited to human hands, but can also be human limbs or tableware.

[0045] Compared with the prior art, the hand washing device provided in the present application has a housing 100 provided with a sensing mechanism 200. When a preset trigger condition is reached, the main control board 500 can control the start-up of the electrolysis mechanism 300 and the ultrasonic oscillation mechanism 400. The ultrasonic oscillation mechanism 400 oscillates the salt water electrolyzed by the electrolysis mechanism 300 to form mist, and then can surround and disinfect the objects to be cleaned. The hand washing device adopts a contactless intelligent sensing trigger start. The entire hand washing and disinfection process does not contact the equipment, and safe cleaning can be achieved. The use of electrolyzed salt water for cleaning can be suitable for people of all ages, is non-irritating and non-polluting to human skin, is safe and harmless, and has a significant bactericidal effect.

[0046] In one embodiment, see Figures 1 to 3The hand washing device further includes a spray mechanism 600, and the user can choose to start either the ultrasonic oscillation mechanism 400 or the spray mechanism 600. The spray mechanism 600 includes a delivery pump 610 and a spray assembly 620. The delivery pump 610 can be connected to the spray assembly 620 through a pipeline. The spray assembly 620 can be arranged on the inner top surface of the housing 100. The spray assembly 620 has at least one nozzle, and the electrolyzed salt water is sprayed from the nozzle. The liquid inlet of the delivery pump 610 is connected to the electrolysis chamber, and the liquid outlet of the delivery pump 610 is connected to the spray assembly 620. The delivery pump 610 is configured to spray the electrolyzed salt water into the inner cavity 101 through the spray assembly 620.

[0047] The setting of the spray mechanism 600 enables the hand washing device to have two hand washing modes, the first hand washing mode is the ultrasonic oscillation atomization mode, and the second hand washing mode is the spray mode. When the user just wants to disinfect his hands, he puts his hands into the first sensing area, starts the ultrasonic oscillation mechanism 400, breaks up the electrolyzed saline solution into tiny floating particles, thereby producing disinfectant mist to disinfect around the hands; when the user needs to wash and disinfect his hands, he puts his hands through the first sensing area and the second sensing area, starts the delivery pump 610, and the delivery pump 610 absorbs the electrolyzed saline solution, compresses it, passes through the adjustable spray generator, and then produces an inclined spray through the spray component 620 to spray the small dirt on the hands, achieving the effect of both disinfection and hand washing. The user can choose one of the hand washing modes according to their own needs.

[0048] In one embodiment, see Figure 1 , Figure 2 The sensing mechanism 200 includes an infrared sensing component. The infrared sensing component is disposed in the inner cavity 101 of the housing 100 and is electrically connected to the main control board 500. When the infrared sensing component senses that an obstacle enters the sensing area, the main control board 500 generates a trigger signal, thereby controlling the electrolysis mechanism 300 and the ultrasonic oscillation mechanism 400 to start working.

[0049] The infrared sensing component includes an infrared transmitting component and an infrared receiving component. The infrared transmitting component is used to transmit infrared light; the infrared receiving component is used to output a sensing signal according to the reflected infrared light.

[0050] Specifically, the main control board 500 can generate a switch control signal after power-on, and the infrared emitting component emits infrared light according to the switch control signal; the sensing signal includes a first sensing signal and a second sensing signal, and the infrared receiving component includes a first infrared receiving component 210 and a second infrared receiving component 220, and the first infrared receiving component 210 can output a first sensing signal according to the reflected infrared light, and the second infrared receiving component 220 can output a second sensing signal according to the reflected infrared light. The sensing area is the overlapping area of ​​the area sensed by the first infrared receiving component 210 and the area sensed by the second infrared receiving component 220. When an obstacle such as a human hand enters the overlapping area, the first infrared receiving component 210 and the second infrared receiving component 220 generate a sensing signal to control the electrolytic water spray, thereby preventing the user from misoperating the spray mechanism 600 and improving the reliability of the electrolytic water spray control.

[0051] It is understandable that the sensing mechanism 200 may also adopt other structures, specifically voice-controlled sensing, where the hand washing mode is selected by clapping. One clapping selects the first hand washing mode and performs spray-type hand washing, and two clappings select the second hand washing mode and performs spray-type hand washing.

[0052] In one embodiment, see Figures 1 to 3 The infrared sensing component forms a first sensing area and a second sensing area in the inner cavity 101. When the infrared sensing component senses that an obstacle enters the first sensing area, the main control board 500 controls the start-up of the electrolysis mechanism 300 and the ultrasonic oscillation mechanism 400. When the infrared sensing component senses that an obstacle enters the second sensing area, the main control board 500 controls the start-up of the electrolysis mechanism 300 and the spray mechanism 600. In this way, the two cleaning modes are adjustable. The user can choose to enter different sensing areas to trigger the corresponding cleaning mode, thereby improving the flexibility and applicability of the hand washing device.

[0053] The first infrared receiving component 210 and the second infrared receiving component 220 are arranged on the inner wall of the housing 100 at intervals. The first infrared receiving component 210 and the second infrared receiving component 220 are arranged horizontally at intervals, and the second infrared receiving component 220 is located on the inner side of the first infrared receiving component 210, that is, the distance between the second infrared receiving component 220 and the opening is greater than the distance between the first infrared receiving component 210 and the opening. When a person's hand extends into the sensing area corresponding to the first infrared receiving component 210, the infrared sensing component sends a first trigger signal, the main control board 500 controls the start of the electrolysis mechanism 300 and the ultrasonic oscillation mechanism 400, and the hand washing device enters the first hand washing mode; when the person's hand continues to extend into the inner side of the housing 100 and moves to the sensing area where the first infrared receiving component 210 and the second infrared receiving component 220 overlap, the infrared sensing component sends a second trigger signal, the main control board 500 controls the start of the electrolysis mechanism 300 and the spray mechanism 600, and the hand washing device enters the second hand washing mode.

[0054] In one embodiment, see Figures 2 to 4 The hand washing device also includes a detection mechanism 700, which includes a first detection electrode 710 and a second detection electrode 720. The first detection electrode 710 is used to detect the pH value of the saline before use, and the second detection electrode 720 is used to detect the pH value of the saline after use. A processing module is provided on the main control board 500, and the processing module is electrically connected to the first detection electrode 710 and the second detection electrode 720 respectively. The processing module is configured to generate bacterial content information according to the pH value detected by the first detection electrode 710 and the second detection electrode 720. By setting the first detection electrode 710 and the second detection electrode 720, the user can easily know the bacterial content information on the hands after washing hands, thereby enriching the function of the hand washing device.

[0055] The detection principle of pH value is as follows:

[0056] HClO has strong oxidizing properties and has an acidic pH value in water, where the pH value is -lg[H+]. The pH value detection circuit uses potentiometric analysis and the working principle of the primary battery to measure the pH value. The voltage between the two electrodes of the detection mechanism 700 is:

[0057] Where E0 is the standard voltage of the electrode, R is the gas constant (8.31439 joules / mole and °C), T is the absolute temperature in Kelvin, F is the Faraday constant (96493 cubic feet / equivalent), n is the valence of the sample being tested, lna Me is the ion activity a Me The logarithm of .

[0058] The activity value of hydrogen ions in the solution is the effective solubility of ions participating in the electrochemical reaction in the electrolyte solution. Among them, the activity of the ion is: аMe=YC, where Y is the ion activity coefficient. When the solution is infinitely dilute, the interaction between ions tends to 0, Y is 1, and a Me The activity is equal to the actual solubility. Generally, the solubility of hydrogen ions in aqueous solutions is very small, so the activity of hydrogen ions is basically equal to its solubility. Therefore, after washing hands, the acidity of the slightly acidic electrolyzed salt water decreases, the pH value increases, and the solubility of relatively free hydrogen ions decreases. The second voltage value V1 of the second detection signal detected after washing hands will decrease. By making a ratio with the first voltage value V0 of the first detection signal, the relative content of bacteria on the user's hands can be judged.

[0059] In one embodiment, see Figure 1 and Figure 3The hand washing device also includes a display panel 110. The display panel 110 can be, but is not limited to, an LED display screen. The display panel 110 can be disposed on the front side of the housing 100 and close to the top surface for easy observation by the user. The display panel 110 is connected to the detection mechanism 700 for communication. The display panel 110 can display the bacterial content information of the salt water before and after use. By providing the display panel 110, the user can visualize the bacterial content of the part he is cleaning and whether the cleaning is up to standard, which brings convenience to the user and improves the user experience.

[0060] In one embodiment, see Figures 1 to 3 The hand washing device also includes an indication module 120, which is communicatively connected to the detection mechanism 700. The indication module 120 is configured to indicate the bacterial content information of the saline solution before and after use according to the detection results of the detection mechanism 700. The saline solution before use is the saline solution after electrolysis and spraying, and the saline solution after use is the saline solution after electrolysis and cleaning and reflux. The indication module 120 may specifically include a plurality of indicator lights arranged on the display panel 110, and different bacterial content information may be indicated by indicator lights of different colors; a green light may be used to indicate that the bacterial content after cleaning meets the standard and the cleaning is qualified; a red light may be used to indicate that the bacterial content after cleaning exceeds the standard and the cleaning is unqualified. It can be understood that the indication module 120 may also be other functional modules that are convenient for indicating the indication function, and the indication function may be realized specifically by means of sound, light, images, symbols or text.

[0061] In one embodiment, see Figure 2 and Figure 5 The housing 100 is provided with an AC power interface and a DC power interface, which constitute a power module 800. The AC power interface is used to access the mains, and the DC power interface can be plugged into a mobile power supply 150. The housing 100 is provided with both an AC power interface and a DC power interface, which can facilitate the use of the hand washing device and improve its applicability; the mobile power supply 150 can be, but is not limited to, a power bank, and the hand washing device is a portable device, so that the hand washing device with the function of ultrasonic electrolysis of saline water can be carried outdoors, which brings convenience to the user and expands the use environment.

[0062] Specifically, the main control board 500, the AC power interface and the DC power interface can be arranged at the rear end of the housing 100 near the bottom; the AC power interface is connected to a plug 510, and the power cord of the plug 510 near one end of the housing 100 is fixed to the housing 100, and a slot for accommodating the plug 510 can be opened on the rear side of the housing 100, and the plug 510 can be stored in the slot when not in use; a mobile power supply 150 can be detachably installed near the rear end of the housing 100, and the mobile power supply 150 can be removed from the housing 100, and the main control board 500 is electrically connected to the mobile power supply 150 through a connecting line. It can be understood that the mobile power supply 150 can also be separated from the housing 100, and when it is needed, it can be plugged into the DC power interface through a connecting line, so that the mobile power supply 150 is connected for power supply.

[0063] In one embodiment, see Figure 2 , Figure 3 The hand washing device also includes a fan mechanism 130, which is communicated with the main control board 500. When the main control board 500 controls the ultrasonic oscillation mechanism 400 to stop working, the main control board 500 controls the start-up of the fan mechanism 130 to blow air on obstacles extending into the inner cavity 101, thereby enriching the functions of the hand washing device.

[0064] In one embodiment, see Figure 2 , Figure 3 The hand washing device further includes a heating mechanism 140, which can be arranged at the air outlet of the fan mechanism 130. When the fan mechanism 130 starts to blow air to the washed objects, the heating mechanism 140 can heat the airflow blown out by the fan mechanism 130, so as to realize the drying function and further enrich the functions of the hand washing device. The heating mechanism 140 can use a PTC heating element, which is safe and reliable and suitable for heating the airflow blown out by the fan mechanism 130.

[0065] In one embodiment, see Figure 1 , Figure 3 and Figure 4 The housing 100 is slidably connected with a draw-out water tank 160, which forms an electrolysis chamber. The draw-out water tank 160 is used to hold salt water. The draw-out water tank 160 can be accommodated in the housing 100 and can be taken out from the housing 100. When the number of hand washing and disinfection reaches a preset value, the draw-out water tank 160 can be drawn out from the housing 100, water can be changed and salt can be added, and then the draw-out water tank 160 can be pushed into the housing 100, so that the effective chlorine in the electrolyzed salt water in the draw-out water tank 160 remains stable. A handle can be provided on the end surface of the draw-out water tank 160 exposed to the housing 100, so as to facilitate the draw-out operation of the draw-out water tank 160 from the housing 100.

[0066] See also Figure 4 , Figure 6A filter screen 170 may be provided between the spray assembly 620 and the pull-out water tank 160. The first detection electrode 710 and the electrolysis mechanism 300 are both provided at the bottom of the pull-out water tank 160. The second detection electrode 720 is provided below the filter screen 170. The second detection electrode 720 detects the pH value of the electrolyzed salt water that has refluxed and been filtered through the filter screen 170.

[0067] See also Figures 2 to 4 , the use of the hand washing device is described in detail below:

[0068] When external direct current is input and the user needs to wash and disinfect his hands, he puts his hands into the common sensing area of ​​the first infrared receiving component 210 and the second infrared receiving component 220 to generate a second trigger signal, and starts the electrolysis mechanism 300 and the first pump driving circuit. First, the electrolysis mechanism 300 electrolyzes the saline solution, and the first detection electrode 710 detects the pH value of the saline solution before spraying to generate a first detection signal. The delivery pump 610 absorbs the electrolyzed saline solution and compresses it through an adjustable nozzle to produce an inclined spray to spray small dirt on the hands, thereby achieving both disinfection and hand washing. The used electrolyzed saline flows back to the channel, passes through the filter 170, and flows to the second detection electrode 720. The second detection electrode 720 detects the pH value of the saline after the return to generate a second detection signal, by obtaining the first voltage value V0 of the first detection signal and making a ratio (V0 / V1) with the second voltage value V1 of the second detection signal. When V1 is smaller, the ratio of V0 / V1 is larger, which indicates that the bacteria content on the hands is relatively high, and the red indicator light on the display panel 110 is lit. When V1 is larger, the ratio of V0 / V1 is smaller, which indicates that the bacteria content on the hands is relatively low, and the green indicator light on the display panel 110 is lit.

[0069] When AC power is input externally and the user needs to wash and disinfect his hands, he puts his hands into the common sensing area of ​​the first infrared receiving component 210 and the second infrared receiving component 220 to generate a second trigger signal, and starts the electrolysis mechanism 300 and the delivery pump 610. First, the electrolysis mechanism 300 electrolyzes the saline solution, and the first detection electrode 710 detects the pH value of the saline solution before spraying to generate a first detection signal. The delivery pump 610 absorbs the electrolyzed saline solution and compresses it through an adjustable nozzle to produce an inclined spray, which sprays the fine dirt on the hands, thereby playing the role of disinfection and washing hands. The acquisition and indication of the bacterial content information can be similar to the processing method when DC power is input externally and the user needs to wash and disinfect his hands, which will not be repeated here.

[0070] When the user only needs to disinfect his hands, he puts his hands into the sensing area of ​​the first infrared receiving component 210 to generate a first trigger signal, and starts the electrolysis mechanism 300 and the ultrasonic oscillation mechanism 400. The ultrasonic oscillation mechanism 400 breaks up the electrolyzed salt water into mist to disinfect the user's hands.

[0071] When the number of hand washing and disinfection equals 10 times, in order to keep the effective chlorine in the electrolyzed salt water in the water tank stable, the electrolysis will continue for 5 minutes to reach the saturation value of HCLO, so as to achieve the purpose of saving water and controlling the size of the water tank. When the number of hand washing exceeds 20 times, the water tank can be changed and salt added.

[0072] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims

1. A hand washing device, characterized in that: include: A shell having an inner cavity therein, the shell having an opening communicating with the inner cavity, the shell having an electrolysis chamber, and the electrolysis chamber containing salt water; A sensing mechanism, disposed on the housing; An electrolysis mechanism, disposed in the electrolysis chamber, for electrolyzing the salt water in the electrolysis chamber; An ultrasonic oscillation mechanism is disposed in the inner cavity and is used to oscillate the salt water electrolyzed by the electrolysis mechanism into mist; A main control board, the sensing mechanism, the electrolysis mechanism and the ultrasonic oscillation mechanism are all electrically connected to the main control board, and the main control board controls the activation of the electrolysis mechanism and the ultrasonic oscillation mechanism when the sensing mechanism receives a trigger signal; The hand washing device also includes a detection mechanism, which includes a first detection electrode for detecting the pH value of the saline solution before use and a second detection electrode for detecting the pH value of the saline solution after use. A processing module is provided on the main control board, and the processing module is electrically connected to the first detection electrode and the second detection electrode respectively. The processing module can generate bacterial content information according to the pH values ​​detected by the first detection electrode and the second detection electrode.

2. The hand washing device according to claim 1, characterized in that: The hand washing device also includes a spray mechanism, which includes a delivery pump and a spray assembly. The liquid inlet of the delivery pump is connected to the electrolysis chamber, and the liquid outlet of the delivery pump is connected to the spray assembly. The delivery pump is used to spray the electrolyzed salt water into the inner cavity through the spray assembly.

3. The hand washing device according to claim 2, characterized in that: The sensing mechanism comprises an infrared sensing component arranged in the inner cavity, and the infrared sensing component generates the trigger signal when sensing that an obstacle enters a sensing area.

4. The hand washing device according to claim 3, characterized in that: The infrared sensing component forms a first sensing area and a second sensing area in the inner cavity. When the infrared sensing component senses that an obstacle enters the first sensing area, the main control board controls the activation of the electrolysis mechanism and the ultrasonic oscillation mechanism. When the infrared sensing component senses that an obstacle enters the second sensing area, the main control board controls the activation of the electrolysis mechanism and the spraying mechanism.

5. The hand washing device according to claim 1, characterized in that: The sensing mechanism includes a sound control component disposed on the housing, and the sound control component generates the trigger signal when receiving a sound signal that meets a preset range.

6. The hand washing device according to claim 1, characterized in that: The hand washing device also includes a display panel, which is communicatively connected to the detection mechanism, and the display panel can display the bacteria content information of the salt water before and after use.

7. The hand washing device according to claim 1, characterized in that: The hand washing device further comprises an indication module which is communicatively connected to the detection mechanism, and the indication module is used to indicate the bacteria content information of the salt water before and after use according to the detection result of the detection mechanism.

8. The hand washing device according to any one of claims 1 to 7, characterized in that: The hand washing device also includes a power module, which includes an AC power interface and a DC power interface arranged on the shell, the AC power interface is used to access the mains, and the DC power interface can be plugged into a mobile power supply.

9. The hand washing device according to any one of claims 1 to 7, characterized in that: The hand washing device also includes a fan mechanism, which is communicatively connected with the main control board and can blow air to obstacles extending into the inner cavity when the ultrasonic oscillation mechanism stops working.

10. The hand washing device according to claim 9, characterized in that: The hand washing device further comprises a heating mechanism, which is arranged at the air outlet of the fan mechanism and is used for heating the airflow blown out by the fan mechanism.

11. The hand washing device according to any one of claims 1 to 7, characterized in that: The shell is slidably connected to a pumping water tank for containing salt water. The pumping water tank can be accommodated in the shell and can be taken out from the shell. The pumping water tank forms the electrolysis chamber.

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